Peter howard adams



(No Model.)

P. H. ADAMS.

MUSIC LEAF TURNER No. 558,746. Patented Jan. 28, 1896.

I A 30 29 INVENTOH 'ATTOHNEYS.

AN BREW B.GRAHAM. PHUTOUTHQWASMI NGTONJ? C UNITED STATES PATENT ()EFIoE.

PETER lIOlVARD ADA MS, OF. OSORNO, CHILE.

MUSIC-LEAF TU RN ER.

SPECIFICATION forming part of Letters Patent No. 553,746, dated January28, 1896.

Application filed April 1, 1895.

T0 aZZ whom, 2115 may concern:

Be it known that 1, PETER HOWARD ADAMS, a subject of the Queen of GreatBritain, at present residing at Osorno, Chile, have invented a new anduseful Improvement in Music-Leaf Turners, of which the following is afull, clear, and exact description.

My invention relates to an improvement in music-leaf turners, and it hasfor its object to provide a device which will quickly turn the leaves ofmusic upon touching-a lever, and without injury to the sheets turned.

Another object of this invention is to provide a machine of the abovecharacter which will. be simple, comprising very few parts, and whichwill be positive in its action.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forininga part ofthis specification, in which similar figures and letters of referenceindicate corresponding parts in all the views.

Figure 1 is a front elevation of the machine, illustrating the music inposition thereon. Fig. 2 is a plan view of the machine, the top beingremoved. Fig. 3 is a longitudinal section through the machine. Fig. 4 isa detail side elevation of the drum and lever for turning it, the drumcontrolling the music-turning arms; and Fig. 5 is a plan view of thedrum and a partial plan view and sectional view of the lever adapted formanipulating the drum.

In carrying out the invention the body of the machine consists of a boxor casin g A, the top whereof is provided with a cover 10 at one endonly. lVithin the casing at a point below the inner end of its cover 10a series of music-turning arms 11 is fulcrumed upon a cross bar or rod12, the fulcrum of the arms being near their inner ends, and said innerends are curved upon one side, as shown in Fig. These arms are placedside by side,

and when not in use rest upon the upper edge at the open endof thecasing, as shown in Fig. 2. Each arm has attached to it above its pivota cord 13, and each cord is made to pass over a pulley 14, all of thepulleys being Serial No. 544,033. (No model.)

mounted to turn on a rod 15, extending transversely from side to side ofthe casing at its open end and near the bottom. Each cord 13 is passedaround its pulley 1% and is then attached to the end of a spring 16, thesaid spring at its opposite end being secured within the casing at apoint near the central portion of its bottom. These springs serve tonormally hold the leaf-turning arms 11 in their lower or horizontalposition, as shown in Fig. 3.

At the covered end of the casing a cylinder 19 is fixed on a shaft 18,which is in turn 3' ournaled in the sides of the casing, and the forwardend of the shaft has attached to it a pointer 19, the same being outsideof the easing and adapted to work over a dial-plate 20. This dial-platemay bear the same characters as the dial of a clock or may be providedwith any numbers, it being adapted to indicate the number of leaves ofmusic that have been turned over.

A series of spirally-arranged pins 21 is secured upon the cylinder, thepins being at predetermined intervals apart, and in each end of thecylinder openings 22 are made corresponding in number and correspondingin position with the number and position of the pins 21. The cylinder isadapted to turn from left to right, and the right-hand end of eachopening 22 is straight or practically so, while the left-hand end isinclined or tapering.

A lever 23 is mounted loosely on the shaft 18, as best shown in Fig. 5,the lever being made to extend through an opening 24 in the end of thecasing, where it may be struck by hand. The lever is normally held in anupwardly-inclined position (shown in Figs. 3 and 4) through the mediumof a spring 25, and its lower end is beveled in order that this positionmay be maintained. The lever is provided near its inner end with anangular spring-catch 26, the said catch being adapted to enter theopening 22 in one end of the cylinder, and when the lever is presseddownward this catch engages the shoulder of the opening with which itoperates and turns the said cylinder a distance corresponding to theperipheral length between two teeth 21, and when the lever is releasedthe spring 25 will return the lever to its normal position and .in. sodoing will carry the catch 2o backward to engage with the next hole,while a second spring-catch attached to the casing A, enters an opening22 at the opposite side of the cylinder and by engagement with itsshoulder holds the cylinder against turning.

The latches and the openings 22 correspond to ratchets and pawls, and itis evident that such devices maybe substituted if found dcsirable.

A number of locking-arms 97 or latch-bars, corresponding to the numberof leaf-turning arms employed, are iulcrumed near their in- .ner endsupon a rod 28, and the inner ends of these locking or retaining arms arebeveled or rounded off, as shown in Fig. 1: while their rear ends aremade to rest normally upon pins 2!), which limit their downwardmovement. The outer end of each retaining or locking arm 27 is adaptedto be engaged by one of the pins 21, the number of pins corresponding tothe number of retaining or locking arms, and guide-pins 30 are arrangedone between each of the arms 27, so as to prevent their lateraldisplacement.

\Vhen a music-turning arm is elevated to a vertical position, as shownin Fig. 3, it will press down the inner end of itsmatin g retaining orlocking arm 27 and pass the same. In so doing the outer end of thelocking or retaining arm will fall, causing its inner end to bearagainst the straight portion of the lower end of the leaf-turning arm,maintaining the arm in its vertical position. Supposing it to be thefirst arm that is to be employed in turning the sheet of music, when thelever 23 is pressed downward the cylinder 17 will have been turned asuitable distance to cause one of its pins 21 to lift up the rear end ofthe locking or retaining arm 27, thereby depressing its inner end andreleasing the musicturning arm, which will turn the sheet resting uponit, since the music-turning arm will be drawn downward by its spring 16,and the arm in passing across the face of the sheet will smooth it outand will hold it in its turned position, as shown at the left in Fig. 1.Each time that the cylinder is turned to turn a sheet a record will bemade on the dial 20, it

being seen that the shat't 18 rotates with a step-by-step movement.

Two or more or the entire number ot' arms in the machine may be setbetween the sheets of music before commencing to play, if desired, andit will be understood that the machine maybe provided with any desirednumber of such leaf-turning arms.

It will be understood that the apparatus is to be placed upon that placeon the piano which is adapted for the reception ol? the music sheet orbook, so that a part of the said sheet or book may rest upon the top 1.0of the casing and the other side upon the opposite end of the box A, thebook being allowed to tilt back upon the usual support.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent 1. The combination with a casing having an upper sideone-half of which is open, a pi neylinder journaled within the casingand be neath the covered upper side thereof, a lever loose on thetrunnion oi the cylinder, a pawl carried by the lever and engaging withthe cylinder, a series of triplevers t'ulcrumed within the casing andalso beneath the covered upper side thereof, the said trip-levers beingrespectively engaged with the pins on the cylinder, and a second seriesof levers, the same being spring-actuated and held in a verticalposition by direct engagement with the trip-levers, substantially asdescribed.

2. In a music-leaf turner, the combination with a casing having its tophalf open, of a cylinder revoluble in the casing and located beneath thecovered portion of the top, the cylinder having pins projecting from itssides, a series of lovers fulcrumed in the casing and beneath thecovered top a second series of levers also fulerumed in the casing andcapable of swinging upwardly and of being limited by the said top, and aseries of springs respectively connected to the second levers,substantially as described.

PETER I'IOXVARD ADAMS.

\Vitnesses:

A. FoLEDo Casas, A. RAMOTTE.

